Barcelona's Lionel Messi (C) controls the ball against Valencia's Gago during their Spanish first division soccer match against Valencia at Nou Camp stadium in Barcelona September 2, 2012.

Barcelona vs Celtic is a huge game in the Champions League on Wednesday, after Celtic were desperately unlucky to lose the corresponding fixture at the Nou Camp a fortnight ago, they will be hoping home advantage can help them turn a last gasp defeat into at least a draw if not a surprise victory. The game is set to kick off at 2.45 p.m. ET and can be watched online through free live stream by clicking on the link below.

However, Celtic will have to complete the job without Emilio Izaguirre, Thomas Rogne, James Forrest and Lassad, who have all been ruled out of today's game.

The Scottish champions also have injury woes up front. Top scorer Gary Hooper could be a huge loss if he does not make the game, and he will be assessed in advance of the game to see if he can give a big boost and be part of the Celtic team for this vital game.

Fellow Celtic striker Georgios Samaras is also another injury concern but he is thought to have progressed well and is likely to be declared fit prior to the game.

Best case scenario for Celtic is if they can have both strikers available, but worse case is if they are missing both attackers. That would blunt their attacking threat and could make for a long night if they cannot apply even a reasonable threat on the Barcelona goal and maintain pressure as Barcelona play possession football across the back line and midfield.

Gerard Pique is in the Barcelona squad after returning from injury, but defender Adriano is out injured. Carles Puyol and Thiago also miss out through injury, and Sergio Busquets is suspended for today's game.

Manager Neil Lennon has spoken out about missing Izaguirre Rogne and Forrest: "It's hugely disruptive as they are big players, have been for a while and were pivotal to how we wanted to play tomorrow," according to BBC Sport.

"We are a little bit stretched, but we will still have a strong team to play tomorrow evening."

Speaking about Samaras, Lennon is hopeful he will recover from injury: "It's important he makes it anyway. He has been unlucky this season with injuries. Obviously he came back from Barcelona and played very well until he picked up the ankle injury. We are hoping he is going to make kick-off."

Barcelona vs Celtic kicks off at 2.45 p.m. ET and can be watched online through free live stream by clicking here.